Gas Type

Asked by Kashiff Apr 20, 2016 at 01:42 AM about the 2015 Dodge Charger SXT RWD

Question type: General

I just bought a 2015 charger sxt with a 3.6L engine & I
was wondering what's the best type of gas to use. 87,88,
or 89? This is my first charger so I'm kind of iffy as to what
has to put in her.

18 Answers

223,905

It should tell you in the owners manual. You should be able to run regular unleaded in it, but the higher octain fuels run cleaner. The premium here in my neck of the woods does not have the ethanol in it that gums up internal parts of the fuel system. But if you throw some fuel injection cleaner in the fuel system once in a while, you can run the lower octain fuel.

17 people found this helpful.
42,415

A HUGE marketing research study, Optimized chemical mechanism for combustion, the MIT researchers deemed AKI — and more specifically, MON — to be an outdated measure of engine performance, originally designed to apply to older, carbureted engines rather than modern, fuel-injected engines. To bring the octane rating system up to date, the team considered doing away with MON, and basing engine performance solely on RON. " Virtually nothing is gained by filling up with a premium or more expensive grade of fuel than the vehicle manufacturer has recommended, the experts say. And many of the same experts explain that drivers may not lose much performance from their cars by using a lower grade of fuel than recommended by the car manufacturer. There is little difference in energy content of regular versus premium gasoline. They both contain about 111,400 British Thermal Units of energy per gallon. The price difference, however, between the fuel grades is anywhere from 20 cents to 40 cents, depending on where you live in the United States. The experts' consensus goes against the long-held belief by thousand of drivers who fill up with premium only, or on every third or fourth trip to the pump. The idea is to fill up with premium every so often to clean out the engines or rev up the performance of older engines. But according to the experts, this practice is like tossing quarters in a wishing well, since most engines are designed to operate on relatively low-octane regular unleaded gasoline."

18 people found this helpful.
223,905

I never checked mileage on my motor but it needs the higher octain fuel to run good since it is pushing 400 hp. But of course that is different than the standard automobile out on the road. I do notice a difference in the power my moped has running premium in it tho. Ethanol just causes problems unless you keep up with a fuel system cleaner.

3 people found this helpful.
70

I have a 2017 Dodge Durango and it does not show what type of grade fuel I can use. Can I still put regular?

7 people found this helpful.

Read the manual again - it certainly does tell you what grade gas to use.

10 people found this helpful.
30

my charger had the sxt lifters taken out of car.but still her the same noise 2016

3 people found this helpful.
40

I have a 2009 dodge caliber, and I was using regular gas for a longtime. In the summer when get hot I put air conditioning on the car jump and ride slow. Yesterday I tried super gas the air conditioning gave more power of the car and driving but the smell it's strong it's have 100,270 mile on it.

4 people found this helpful.
120

Can i put premium gas in my 2016 charger rt with regular gas in there already

12 people found this helpful.
110

what is different between SE, SXT, R/T,SRT, ? which one is more fuel efficient?

8 people found this helpful.
110

which model of Dodge charger have minimum HP or more fuel efficient?

3 people found this helpful.
30

Se, sxt trims have a 3.6L v6 pentastar engine. The r/t model is a 5.7L v8 and the srt models vary between a 6.1L or a 6.4L depending on the year. The se/sxt models have the best fuel economy due to them having the smaller v6 engine.

3 people found this helpful.
40

I have an 2008 charger r/t and according to everything ive read they are not designed to run on premium fuel (90 octane or higher). They are designed to run on 87 or 89 octane. Owners manual says not to run premium fuel.

4 people found this helpful.
10

I have a 2008 charger r/t 5.7 I've used 87 and 89 octane. Only 10% better with 89

1 people found this helpful.
10

Octane isn't about gas mileage or power. It's about detonation timing. Higher octane requires slightly higher compression rating causing it to combust when the Piston is higher preventing pre detonation. So while MIT got the BTU rating right, the completely missed the boat as to why there is even a different octane level in the first place.

1 people found this helpful.
15

I have a 2009 dodge charger police package . what fuel should i use . currently use 87. could i use 88 or should i use different ?

1 people found this helpful.

The new hemi engine are designed for 87 or 89 octane. If there any programming or modifications to the car you can try high octane but can't guarantee it will make a difference

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